CVE-2026-90323

A flaw was found in the Linux kernel's ublk subsystem. When the automatic buffer registration feature is active, an invalid buffer address can be processed, causing a command to complete while its associated tag remains active. This can lead to a system hang during resource teardown, allowing a local attacker to cause a Denial of Service (DoS).

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.